Do you keep a small spiral notebook full of lists? Which books you've read, which books are next in a series, new authors you want to check out? Or maybe you've got an elaborate Excel spreadsheet, tabbed and color-coded by genre?
Well, try out two online databases, FictionDB and FictFact, that not only let you keep track of what you have read, but also what you're reading now and what you're planning on reading. You can search by author, title, series, and more. Each database lets you rate the books and has an extensive new release calendar for tracking newly published titles.